Reporting What Matters Most: The Air You Breathe.
On a June afternoon in 2023, the sky over Raleigh turned the color of old pennies. Canadian wildfire smoke had traveled hundreds of miles at altitude and pushed the city’s AQI into Code Red. The weather app said partly cloudy, 84 degrees. A great day to be outside, by every visible sign. That’s the gap … Read more
The AC-only quote is almost always the cheaper number. That’s not the same thing as the cheaper decision. We’ve tracked this long enough to see the pattern. A homeowner approves an AC-only replacement because it costs $3,000 less than the full system quote. Two years later, the furnace fails. They pay labor twice, buy equipment … Read more
At TheFilterReport, we’ve tested and tracked filter performance across dozens of homes and HVAC systems — and winter consistently tells the same story: the moment people seal their homes for the cold, airborne allergen levels climb. Dust mites don’t hibernate; they capitalize on the warm, humid pockets created by running furnaces and closed ventilation, flooding … Read more
Most Cleveland residents check the forecast before heading outside. Almost none check the AQI — and in a city where the air quality score varies block by block, that’s a gap our team has measured firsthand. Here’s what our monitoring work consistently shows: Cleveland’s air doesn’t behave as a single city. A reading from the … Read more
So here’s something that actually happened. A buddy of ours clipped one of those scented pads to his furnace filter last winter, thought nothing of it, and a week later his wife mentioned the house smelled like burnt plastic. Turns out his filter was already overdue for a change, the scent pad was partially blocking … Read more
We’ve tested both. The answer isn’t as obvious as the marketing makes it look. When our team ran Filterbuy and Filtrete filters through head-to-head comparisons across multiple MERV ratings, the results split along a line most comparison guides never mention: how each brand’s filter media behaves under real-world static pressure inside a residential HVAC system. … Read more
If you have ever stepped outside on a crisp October morning in New York and noticed the air felt different — cleaner, sharper, easier to breathe — you were not imagining it. Autumn consistently produces some of the lowest pollution readings we track across the entire calendar year in the New York metro area, and … Read more
Most Arizona residents check the weather before heading outside. Few check the air quality — and that’s a problem our team has tracked firsthand across monitoring stations from Phoenix to Flagstaff. Here’s what we’ve observed: Arizona’s AQI doesn’t behave like other states. A clear, sunny morning can register unhealthy PM2.5 levels before 9 a.m. — … Read more
Last reviewed: March 4, 2026 I’ll be upfront about something: I used to grab whatever was on the shelf. Same brand, same MERV number, barely a second thought. Then I started actually measuring what happened to my system after swapping brands — and the differences surprised me enough to write this comparison. This is not … Read more
Short answer — most used furnace filters cannot be recycled through standard curbside programs. We’ve examined dozens of spent filters in our testing process and found the same thing every time: a tangle of fiberglass, synthetic media, adhesive, and trapped contaminants that no municipal recycling facility wants in its stream. The problem is that most … Read more